BATTERY SENSOR DATA TRANSMISSION UNIT AND A METHOD FOR TRANSMITTING BATTERY SENSOR DATA

• US 20150010790A1
• Filed: 01/23/2013
• Published: 01/08/2015
• Est. Priority Date: 02/23/2012
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Henrici, Fabian, Wenzler, Axel, Schiemann, Werner, Schnitzer, Reiner, Elbracht, Berthold
• Granted Patent: US 10,651,515 B2
• Time in Patent Office: Days
• US Class Current: 429/50
• CPC Class Codes: G01R 31/371 with remote indication, e.g. on external chargers
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H04Q 2209/84 Measuring functions
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery sensor data transmission unit is described as including a data transmission unit, which is designed to output a sensor signal, which represents a physical variable in or at the battery cell to an evaluation device, using a battery housing wall and/or a wall of a battery cell as the transmission medium.

Claims

1-11. -11. (canceled)

12. A battery sensor data transmission unit, comprising:

a data transmission unit for outputting a sensor signal that represents a physical variable one of in and at a battery cell, the data transmission unit outputting the sensor signal to an evaluation device using at least one of a battery housing wall and a wall of the battery cell as a transmission medium.

13. The battery sensor data transmission unit as recited in claim 12, wherein the data transmission unit transmits the sensor signal to the battery housing wall using one of a capacitive coupling and an inductive coupling between the battery cell and the battery housing wall.

14. The battery sensor data transmission unit as recited in claim 12, wherein the data transmission unit transmits the sensor signal to the battery housing wall using an electrically conductive connection.

15. The battery sensor data transmission unit as recited in claim 12, wherein the data transmission unit transmits the sensor signal using a code which is unambiguously assignable to the battery cell.

16. The battery sensor data transmission unit as recited in claim 12, further comprising:

a connection state ascertainment unit to ascertain at least one of;

a series connection state, in which the battery cell is connected in series to another

battery cell with the aid of a power supply line, and

a bypassing state in which at least one pole of the battery cell is decoupled from at

least the other battery cell,

wherein the data transmission unit outputs the sensor signal in the bypassing state to the evaluation device using the battery housing wall as the transmission medium.

17. The battery sensor data transmission unit as recited in claim 16, wherein the connection state ascertainment unit determines one of the series connection state and the bypassing state by evaluating a position of a switch that carries out an electrical coupling of a pole of the battery cell to the power supply line.

18. The battery sensor data transmission unit as recited in claim 16, wherein the connection state ascertainment unit ascertains one of the series connection state and the bypassing state using a measuring result relating to at least one of a current flow, an energy flow, and a power flow via the power supply line.

19. The battery sensor data transmission unit as recited in claim 17, wherein the switch is activated using a control signal, and wherein the data transmission unit synchronizes one of an ascertainment and an output of the sensor signal with the control signal.

20. The battery sensor as recited in claim 19, wherein the control signal includes a pulse-width modulated control signal.

21. A battery unit, comprising:

a battery cell assembly that includes at least two battery cells;

at least one sensor for providing a measured value that represents a physical variable one of in and at one of the battery cells; and

at least one battery sensor data transmission unit that includes a data transmission unit for outputting a sensor signal that represents the physical variable, the data transmission unit outputting the sensor signal to an evaluation device using at least one of a battery housing wall and a wall of the battery cell as a transmission medium.

22. A method for transmitting battery sensor data, comprising:

outputting a sensor signal that represents a physical variable one of in and at a battery cell to an evaluation device, using at least one of a battery housing wall and a wall of the battery cell as a transmission medium.

23. A computer program having program code for carrying out a method, if the computer program is executed on one of a device, a battery sensor data transmission unit, and a data processing equipment, the method comprising:

outputting a sensor signal that represents a physical variable one of in and at a battery cell to an evaluation device, using at least one of a battery housing wall and a wall of the battery cell as a transmission medium.